| Autor: |
Xintong Li, Yuchen Gu, Yue Chen, V. Ovidiu Garlea, Kazuki Iida, Kazuya Kamazawa, Yangmu Li, Guochu Deng, Qian Xiao, Xiquan Zheng, Zirong Ye, Yingying Peng, I. A. Zaliznyak, J. M. Tranquada, Yuan Li |
| Jazyk: |
angličtina |
| Rok vydání: |
2022 |
| Předmět: |
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| Zdroj: |
Physical Review X, Vol 12, Iss 4, p 041024 (2022) |
| Druh dokumentu: |
article |
| ISSN: |
2160-3308 |
| DOI: |
10.1103/PhysRevX.12.041024 |
| Popis: |
We report magnetometry data obtained on twin-free single crystals of Na_{3}Co_{2}SbO_{6}, which is considered a candidate material for realizing the Kitaev honeycomb model for quantum spin liquids. Contrary to a common belief that such materials can be modeled with the symmetries of an ideal honeycomb lattice, our data reveal a pronounced twofold symmetry and in-plane anisotropy of over 200%, despite the honeycomb layer’s tiny orthorhombic distortion of less than 0.2%. We further use magnetic neutron diffraction to elucidate a rich variety of field-induced phases observed in the magnetometry. These phases manifest themselves in the paramagnetic state as diffuse scattering signals associated with competing ferromagnetic and antiferromagnetic instabilities, consistent with a theory that also predicts a quantum spin liquid phase nearby. Our results call for theoretical understanding of the observed in-plane anisotropy and render Na_{3}Co_{2}SbO_{6} a promising ground for finding exotic quantum phases by targeted external tuning. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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